Circumference: around head 9", at root 9", at flare 10-1/2
Made for us by Square Peg from the original Rudi Molds of ours, the new incarnations of these popular toys are made from silicone (not as soft as the originals - but same shape). The toys are manufactured with a solid casting vacuum process to eliminate air bubbles and make the items more durable. The items are safe to use with water, some silicone and all oil based lubes.